26 September 2006
Exception: For DLA, a reserve fire pump of the same size must be provided
whenever a fire pump is required.
A fire pump may be either a horizontal or vertical shaft centrifugal pump or a
vertical shaft turbine pump; whichever is most economical and appropriate for the
intended use. A centrifugal pump in either the horizontal or vertical position must
not be used where suction lift is required. A vertical shaft turbine pump must be
used for suction lift.
Pump Starting Arrangement.
Fire pumps must be arranged to start automatically. Fire pumps may be
arranged for manual starting when other available water supply sources are
capable of providing demands for automatic sprinkler systems simultaneously
with domestic and industrial demands.
Pump Shut Down.
Once started, fire pumps must be arranged to run until shut down manually.
Exception 1: Operation by automatic periodic exercise timers used for the
required preventive maintenance run times.
Exception 2: Automatic shut down upon total exhaustion of suction reservoir
water may be permitted.
Electric power supply(ies) for pumps used in fire protection service must comply
with NFPA 20. Where electric power is economically available from a reliable
single source of adequate capacity or from two independent sources each of
adequate capacity, pumps may be electric driven. When such electrical power
supplies are not available, fire pumps must be diesel driven. Spark ignited
internal combustion engines must not be used to drive fire pumps.
Exception: A diesel driven fire pump does not have to be provided when the fire
pump is equipped with an automatic transfer switch and connected to an
Note: A reliable single power source is defined as a power source having an
average forced down time, excluding scheduled repairs, which does not exceed
8 consecutive hours for any one incident nor more than 24 hours cumulatively
over the last 3 years.